Wikipedia
BrahMos-II or BrahMos-2 or BrahMos Mark II (note: not to be confused with BrahMos block-2) is a hypersonic cruise missile currently under joint development by Russia's NPO Mashinostroeyenia and India's Defence Research and Development Organisation, which have together formed BrahMos Aerospace Private Limited. It is the second of the BrahMos series of cruise missiles. The BrahMos-II is expected to have a range of and a speed of Mach 7. During the cruise stage of flight the missile will be propelled by a scramjet airbreathing jet engine. Other details, including production cost and physical dimensions of the missile, are yet to be published. It is expected to be ready for testing by 2017.
The planned operational range of the BrahMos-II has been restricted to 290 kilometers as Russia is a signatory to the Missile Technology Control Regime (MTCR), which prohibits it from helping other countries develop missiles with ranges above . Its top speed will be double that of the current BrahMos-I, and it has been described as the fastest cruise missile in the world. Russia is developing a special and secret fuel formula to enable the BrahMos-II to exceed Mach 5.
Design of multiple variants of the missile was completed by October 2011, with testing starting in 2012. Fourth-generation multi-purpose Russian Naval destroyers ( Project 21956) are also likely to be equipped with the BrahMos II.
BrahMos Aerospace named the missile BrahMos-II (K) in honour of the former President of India, APJ Abdul Kalam.
The BrahMos-II is suspected to be the export variant of the 3M22 Tsirkon, a hypersonic anti-ship missile being developed by Russia for its s, just as the original BrahMos was in relation to the P-800 Oniks it was developed from.